-import { Injectable } from '@angular/core';
-import { URLSearchParams } from '@angular/http';
+import { Injectable } from '@angular/core'
+import { HttpParams } from '@angular/common/http'
+import { SortMeta } from 'primeng/components/common/sortmeta'
-import { RestPagination } from './rest-pagination';
+import { RestPagination } from './rest-pagination'
@Injectable()
export class RestService {
- buildRestGetParams(pagination?: RestPagination, sort?: string) {
- const params = new URLSearchParams();
+ addRestGetParams (params: HttpParams, pagination?: RestPagination, sort?: SortMeta | string) {
+ let newParams = params
- if (pagination) {
- const start: number = (pagination.currentPage - 1) * pagination.itemsPerPage;
- const count: number = pagination.itemsPerPage;
-
- params.set('start', start.toString());
- params.set('count', count.toString());
+ if (pagination !== undefined) {
+ newParams = newParams.set('start', pagination.start.toString())
+ .set('count', pagination.count.toString())
}
- if (sort) {
- params.set('sort', sort);
+ if (sort !== undefined) {
+ let sortString = ''
+
+ if (typeof sort === 'string') {
+ sortString = sort
+ } else {
+ const sortPrefix = sort.order === 1 ? '' : '-'
+ sortString = sortPrefix + sort.field
+ }
+
+ newParams = newParams.set('sort', sortString)
}
- return params;
+ return newParams
}
}